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Resistance Of Wire

IF YOU INCREASE THE VOLTAGE - MORE CURRENT WILL FLOW.
IF YOU INCREASE THE RESISTANCE - LESS CURRENT WILL FLOW (UNLESS YOU INCREASE THE VOLTAGE).'
ó`In Metals The Current Is Carried By Electrons
1. Electric current will only flow if there are charges, which can freely move.
2. Metals contain a sea of "Free Electrons" (which are negatively charged). And flow throughout the metal if they are given energy.
3. This is what allows electric current to flow so well in materials.'
ó`Resistance
Resistance is anything that causes an opposition to the flow of electricity in a circuit. It is used to control the amount of voltage and /or amperage in a circuit. Everything in a circuit causes a resistance (even wire). It is measured in OHMS (Ω). Resistance occurs when the electrons travelling along the wire collide with the atoms of the wire. These collisions slow down the flow of electrons causing resistance. Resistance is a measure of how hard it is to move the electrons......


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Approximate Word Count: 1343
Approximate Pages: 6 (250 words per double-spaced page)

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